Variable effects of heart rate on phasic and regional left ventricular muscle blood flow in anaesthetized dogs
- 1 January 1975
- journal article
- research article
- Published by Oxford University Press (OUP) in Cardiovascular Research
- Vol. 9 (1) , 1-11
- https://doi.org/10.1093/cvr/9.1.1
Abstract
Tachycardia to 240 beats/min in anaesthetized dogs increases coronary blood flow while flow in the left ventricular wall remains homogeneous. An arteriovenous fistula causes subendocardial ischaemia at 120 beats/min but pacing to 180 to 210 beats/min increases subendocardial blood flow by increasing diastolic coronary driving pressure per minute.Keywords
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